Organisms and PopulationHard

Question

Which one of the follwing characteristics of the biological community ?

Options

A.Strafication
B.Natality
C.Mortality
D.Sex - ratio

Solution

Stratification is the characterstic of biogical community. Stratification is the vertical layering or the phenomenon of having more than one stratum including formed by differents plants in the same place. A forest may have 5 - 7 strata including large or canopy trees, medium trees, short trees, shrubs, herbs, ground flora etc. Stratification is useful as it can accommodate a large number of organisms of different types and more efficients use of resources. The ani,als that occupy such similar strata or ecological niches although geographicla separated, are called ecological equivalents.

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